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Alcaraz, J., Monge, J.F., Ramón, N. (2022) «Ranking ranges in cross-efficiency evaluations: A metaheuristic approach», Journal of the Operational Research Society, 73 (4):779–793

Javier Alcaraz, Juan Francisco Monge and Nuria Ramón (Center of Operations Research (CIO), Miguel Hernández University of Elche) 
Abstract: In the cross-efficiency evaluation, the existence of alternative optima for weights represents an inconvenience because the ranking obtained depends on the weights used. Alcaraz et al. (2013) design an algorithm that provides a range of positions for […]

By salonso, ago

Alcaraz, J., Anton-Sanchez, L., Monge, J.F. (2022) “The Concordance Test, an Alternative to Kruskal-Wallis Based on the Kendall- τ Distance: An R Package”, R Journal, 14 (2):26-53

Javier Alcaraz, Laura Anton-Sanchez, Juan Francisco Monge (Operations Research Center, University Miguel Hernández of Elche)
Abstract: The Kendall rank correlation coefficient, based on the Kendall-τ� distance, is used to measure the ordinal association between two measurements. In this paper, we introduce a new coefficient also based on the Kendall-τ� distance, the Concordance coefficient, and a test to measure whether […]

By salonso, ago

Juan Aparicio, & Miriam Esteve (2023). How to peel a data envelopment analysis frontier: A cross-validation-based approach. Journal of the Operational Research Society, 74, 2558-2572.

Juan Aparicio (Miguel Hernández University of Elche; Valencian Graduate School and Research Network of Artificial Intelligence (valgrAI), and Miriam Esteve (Miguel Hernández University of Elche)
Abstract:
Data Envelopment Analysis (DEA) presents the typical characteristics of a data-driven approach with the specific objective of determining technical efficiency and production frontiers in Engineering and Microeconomics. However, by construction, the […]

By anabel.perez, ago

On particularly nice cones

Título: On particularly nice cones
Ponente: Vera Roshchina, UNSW Sydney (Australia)
Organizador: Juan Parra
Fecha: viernes 23 de diciembre de 2022 a las 12:30 horas
Lugar: Sala de seminarios CIO
Abstract: There are many properties of facial structure of convex sets that coincide in a lower-dimensional setting but differ in higher dimensions. This talk will cover several such different properties […]

By salonso, ago